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Foreign air carrier cleared to one zero thousand and readback what sounded like correct altitude. Aircraft actually climbed to one three thousand. ARTCC control complained.
| Attributes | |
| ACN | 86155 |
| Time | |
| Date | 198804 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : phl |
| State Reference | PA |
| Altitude | msl bound lower : 10000 msl bound upper : 13000 |
| Environment | |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tracon : phl |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| ASRS Report | 86155 |
| Person 2 | |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On 4-SUN-88 I was working the mxe sector at phl. At XA122 foreign widebody transport departed. I instructed him to 'climb and maintain one zero thousand.' he read back 'one terra tucson.' after transferring him to new york center, I was advised he had climbed to 13000'.
Original NASA ASRS Text
Title: FOREIGN ACR CLEARED TO ONE ZERO THOUSAND AND READBACK WHAT SOUNDED LIKE CORRECT ALT. ACFT ACTUALLY CLIMBED TO ONE THREE THOUSAND. ARTCC CTL COMPLAINED.
Narrative: ON 4-SUN-88 I WAS WORKING THE MXE SECTOR AT PHL. AT XA122 FOREIGN WDB DEPARTED. I INSTRUCTED HIM TO 'CLIMB AND MAINTAIN ONE ZERO THOUSAND.' HE READ BACK 'ONE TERRA TUCSON.' AFTER TRANSFERRING HIM TO NEW YORK CENTER, I WAS ADVISED HE HAD CLIMBED TO 13000'.
Data retrieved from NASA's ASRS site as of August 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.